validates(*names, **kw)
Decorate a method as a ‘validator’ for one or more named properties.
I need to validate two incoming *-**attributes at the same time, for example:
class Entity(Base):
....
attr_timezone = Column(String)
attr_timestamp = Column(MyTimeStamp)
When taking incoming arguments, `attr_timezone` as a string need to be first validated and converted to timezone instance before being attached to my custom class `MyTimeStamp`. Can `validates` do this?
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